Programming Fundamentals:
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Datatypes and Literals:
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calculator ==> digital application
	mobiles, laptops, desktops etc.
+, -, * ==> 
12 + 24
1.2 + 2.3 etc.

Datatype ==> in how many ways the data can represent in python
Literal ==> value

ex: x = 9 (integer)

==> Datatypes are classified into two types:
	1) Primitive datatypes ==> with single literal
	2) Non-Primitive Datatypes ==> with group of values/Collections

1) Primitive datatypes
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==> all fundamental datatypes are primitive datatypes.
	Integer Datatype
	Float Datatype
	Complex Datatype
	Boolean Datatype
==> Python is Object Oriented Programming Language
==> Programming languages are classified into three types:
	1) Structured Programming Languages : C
	2) Object Based Programming Languages : VB Script
	3) Object Oriented Programming Languages : C++, Python, Java etc.

Concepts from OOPs (Object Oriented Programming System):
	Concise programming
	Reliable programming
	Security
class, object, method, constructor, destructor, Encapsulation, Polymorphism, Inheritance, Abstraction etc.

IS REALLY PYTHON IS OBJECT ORIENTED?
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YES.
==> That every definition in the program/Script
	data definition ==> object
object ==> Instance for class
class ==> data and methods

type() ==> function
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print(type(10))
	==> <class 'int'>

# How python is object-oriented?
a = 10
b = 1.23

print(type(a))
print(type(b))


class:
	class int:
		decimal
		binary
		octal
		hexadecimal
		int() ==> int(0b110101) ==> any data to decimal
		oct()
		hex()
		bin()

venv ==> Virtual Environment
	make include all these built-in classes ==> into program automatically

a = 10
b = 0b11001
c = 0o12
d = 0x12

Phonepe:
	check balance
		x ==> UPI

	transfer
		x ==> y
		10000
	?
	phonepe ==> Bank

function Vs Method:
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def

function ==> write in outside the class
method ==> write in inside the class.